EP2042083A2 - Type de détecteur de type à collier pour des informations électrocardiographiques et de température - Google Patents

Type de détecteur de type à collier pour des informations électrocardiographiques et de température Download PDF

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Publication number
EP2042083A2
EP2042083A2 EP08009012A EP08009012A EP2042083A2 EP 2042083 A2 EP2042083 A2 EP 2042083A2 EP 08009012 A EP08009012 A EP 08009012A EP 08009012 A EP08009012 A EP 08009012A EP 2042083 A2 EP2042083 A2 EP 2042083A2
Authority
EP
European Patent Office
Prior art keywords
electrocardiographic
signal
detector according
detector
electrode
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP08009012A
Other languages
German (de)
English (en)
Other versions
EP2042083A3 (fr
Inventor
Terry B.J. Kuo
Ching-Hsiu Yang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
National Yang Ming Chiao Tung University NYCU
Original Assignee
National Yang Ming University NYMU
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by National Yang Ming University NYMU filed Critical National Yang Ming University NYMU
Publication of EP2042083A2 publication Critical patent/EP2042083A2/fr
Publication of EP2042083A3 publication Critical patent/EP2042083A3/fr
Withdrawn legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/0205—Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
    • A61B5/02055—Simultaneously evaluating both cardiovascular condition and temperature
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/25—Bioelectric electrodes therefor
    • A61B5/279—Bioelectric electrodes therefor specially adapted for particular uses
    • A61B5/28—Bioelectric electrodes therefor specially adapted for particular uses for electrocardiography [ECG]
    • A61B5/282—Holders for multiple electrodes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/41—Detecting, measuring or recording for evaluating the immune or lymphatic systems
    • A61B5/411—Detecting or monitoring allergy or intolerance reactions to an allergenic agent or substance
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/6813—Specially adapted to be attached to a specific body part
    • A61B5/6822—Neck
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
    • A61B5/0015—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network characterised by features of the telemetry system
    • A61B5/0022—Monitoring a patient using a global network, e.g. telephone networks, internet

Definitions

  • a physiological signal recording system having no lead wire, easy to operate, monitor and detection at any time and accurate analysis can be achieved.
  • the system can be used on the evaluation of sleeping quality for normal person and patients having diseases and applicable for diagnosis of long term patients having sleep obstacle.
  • the system can be used on efficiency valuation of long term sleeping pills and other pharmaceuticals with respect to sleeping and side effect on self-neurological function, and health care with respect to sleep and the alteration of self neurological function, and other alternative of various health product, on the valuation on old age body, and sleeping problem of newborn babies.
  • heart catch also called cardiac catheterization
  • a method shown blood vessels of the heart and the inside of the heart as it pumps needs to put a catheter into artery then guided into the heart. It increases the accuracy for diagnosis and also increases the risk in the course of a surgery and the patient should endure the pain.
  • non-invasive method is much safer as compared to an invasive method. This is due to the indirect detection method which cannot obtain accurate signal for medical use.
  • Heart rate variability (HRV) analysis ( Anonymous 1996, Circulation 93: 1043-1065 . ) represents a good example for non-invasive diagnosis, which detects the skin surface voltage variability and processes those signals to estimate of the function of the sympathetic and parasympathetic autonomic nervous systems in patients.
  • HRV heart rate variability
  • This technique has been successfully applied on analysis of cardiovascular fluctuations during pentobarbital anesthesia ( Yang et al. 1996, American Journal of Physiology 270:H575-H582 .), brain death determining ( Kuo et al.
  • the non-invasive diagnosis technique mainly consists two parts, the first one is a detector and the other one is a signal processing unit.
  • the detector is the most important part in this field for the reason that, without a suitable detector, no accurate signal could be obtained and the further, signal procession is useless, or if the detector is difficult to apply on a patient, and the patient feels uncomfortable to use the invasive one.
  • it is important to develop a non-invasive diagnosis technique for which a detector is accurate, comfortable to be applied on a patient and is user friendly.
  • ECG electrocardiography
  • a non-invasive detector become a daily-use necklace on wearing a subject and such detector is designed to express an article with beautiful outlook together with a user can use the detector under quiet condition or can fix the detector for a duration, such detector can enhance the practicability of non-invasive technology and can be worn a long time to achieve long term care.
  • the present invention provides an non-adhering electrocardiographic and temperature signal detector comprising: (a) an electrocardiographic detecting working electrode, an electrocardiographic reference electrode and a temperature sensor connected together by a conduction chain; (b) a signal processing unit for processing those signals obtained from said electrode or sensor, (c) a wireless transceiver for sending and receiving processed signal of electrocardiographic to the receiver at a far end unit or receiving data from the far end unit; and (d) a power supply supplying power to the operation of the detector.
  • Figure 1 shows an embodiment of necklace type of electrocardiographic and temperature signal detector of the present invention, wherein the electrocardiographic reference electrode is an independent conductive chain.
  • Figure 2 shows an embodiment of necklace type of electrocardiographic and temperature signal detector of the present invention, wherein the electrocardiographic reference electrode and the conductive chain are formed as one unit.
  • Figure 3 is a schematic view showing the detector being worn by user.
  • Figure 4 is a schematic view showing the circuit design of the detector of the present invention.
  • FIG. 5 illustrates heart beat changes information by spectrum analysis of electrocardiographic signal detected by the detector of the present invention.
  • the present invention relates to an necklace type of non-adhering electrocardiographic and temperature signal detector comprising: (a) an electrocardiographic detecting working electrode, an electrocardiographic reference electrode and a temperature sensor connected together by a conduction chain; (b) a signal processing unit for processing those signals obtained from said electrode or sensor, (c) a wireless transceiver for sending and receiving processed signal of electrocardiographic to the receiver at a far end unit or receiving data from the far end unit; and (d) a power supply supplying power to the operation of the detector.
  • the electrocardiographic electrode and the electrocardiographic reference electrode are constructed into a two-electrode system.
  • the electrocardiographic electrode detects surface voltage of a user's skin and electrocardiographic signal is compared with the surface voltage of the reference electrode at fixed potential. The detection can be obtained by direct contact with the skin or indirect sensing of the skin.
  • the function of the reference electrode is used as a reference for amplified electrocardiographic signals.
  • the chain used in this invention contains a conductive wire and is connected with a pendant, and the conductive chain and the pendant can be of various shapes.
  • the electrocardiographic working electrode and the electrocardiographic reference electrode of this invention are placed separately on the conductive chain and on a pendant connected to the chain, wherein the electrode placed on the chain part is the chain per se or is a conductive plate on the chain.
  • the electrode placed on the pendant is a conductive outer shell of said pendant or is placed at the interior of the conductive or non-conductive pendant.
  • the conductive outer shell is made by metal or by plastic having processed on the surface thereof. For instance by electroplating or coating with conductive paint, graphite or carbon fiber or other conductor.
  • the method of detecting by the detector is thermal resistance effect, thermistor, thermocouple, or any non-invasive electric-thermometer.
  • the present signal processing unit of this invention comprises the detector wherein the signal processing unit comprising: (a) a signal amplifier; for amplify the electronic signal of the obtained electrocardiographic or temperature, (b) an electronic filter for screening the distorted signal detected; and (c) an analog-to-digital converter (ADC) to convert the analog signal to digital signal.
  • the signal processing unit comprising: (a) a signal amplifier; for amplify the electronic signal of the obtained electrocardiographic or temperature, (b) an electronic filter for screening the distorted signal detected; and (c) an analog-to-digital converter (ADC) to convert the analog signal to digital signal.
  • ADC analog-to-digital converter
  • the wireless transceiver of this invention transmits signals through radio wave interface or infrared interface, wherein the radio wave interface is wireless, WLAN, INTEREST RATE, Bluetooth, RFID, GSM, PHS, CDMA or any other radio wave interface that can be used for electronic signal transmission.
  • the radio wave interface is wireless, WLAN, INTEREST RATE, Bluetooth, RFID, GSM, PHS, CDMA or any other radio wave interface that can be used for electronic signal transmission.
  • the power supply is a storage battery. Further the power supply is batteries.
  • the signal processing unit of the present invention, wireless transceiver and the power supply are altogether or separately provided in one or more than one pendant.
  • the detector further comprises a data storage unit for storing electronic physiological signal after being processed by the signal processing unit.
  • the data storage unit is Random Access Memory (RAM) or any device for storing electrical signal.
  • the size of the detector of the present invention likes a common necklace.
  • the detector adopts non-adhering design to facilitate long-term wearing and to mitigate uncomfortable feeling when eletrocardiographic signal. Meanwhile, the detector could be designed as an article with beautiful and elegant outlook to increase the acceptability of a customer.
  • the detector of the present invention is always worn on neck.
  • the detector could be applied to other position such as limbs.
  • FIG. 1 there is shown one embodiment of present invention, which is a non-adhering stuck necklace-type detector 100 having an electrocardiographic working electrode 140, a temperature sensor 150, a computing center 160 (contains signal processing unit 161, data storage unit 163, and wireless transceiver 164), a battery 162, and a reference electrode 110, wherein the former four components are placed within a pendant and the last component is a metal plate placed on a chain connecting the sensor 150.
  • Figure 2 is another preferred embodiment of this invention which is slightly modification as compared to Figure 1 with respect to the reference electrode 130.
  • the reference electrode 130 in Figure 2 is integrated into the chain.
  • the working electrode 140 is an induction coil placed within the pedant.
  • this detector 300 is worn on user's neck and the pendant hangs in front of chest. To perform a measurement, the user is asked to keep at a steady posture and the detector is in contact with the skin of the user for a few seconds. Then the electrocardiographic signal is obtained from detecting the chest surface the voltage of the surface of the chest by the working electrode 140, and the temperature information will be collected by the temperature sensor 150.
  • an amplification device (a R.O.C. patent of the same inventor, patent No. 149299 , application date 1998/01/15) is used to amplify electrocardiographic signal detected by the working electrode and to obtain a useful wave pattern of the signal-to-noise ratio.
  • the present invention has another function on body temperature measurement.
  • the detection principle is the same as any commercial electric thermometer that detects a voltage change, a resistance change or a current change on the inner circuit of the sensor caused by heat transmission, and converts this information into electric signals
  • FIG. 4 shows a diagram of the circuit design 400 of the present invention.
  • the electrocardiographic signals obtained from the working electrode 140 first passes through an input filter 421 to enhance signal-to-noise ratio. Then, the signals are amplified by an amplifier 422 which uses the reference electrode 110 as a standard, and then the signals pass through an outpour filter 423 in order to facilitate the sampling.
  • the body temperature signals also pass through a filter/amplify unit 424 to be filtered and amplified.
  • ADC analog-to-digital converter
  • micro arithmetic logic unit 432 a micro arithmetic logic unit 432
  • modulator/demodulator 441 a modulator/demodulator 441 to further transmit the signals to a far-end computer through the wireless transceiver 164.
  • the wireless transceiver 164 also can receive the feedback signal sent from the far-end receiver.
  • a power supply 162 is used to supply power to this signal processing unit 410.
  • IrDA Infrared Data Association
  • IR port infrared port
  • the computer program for HRV analysis was described in our previous publication ( Kuo et al. 1999, American Journal of Physiology 277: H2233-H2239 . ).
  • QRS identification procedure the computer first detected all peaks of the digitized ECG signals using a spike detection algorithm similar to general QRS detection algorithms. Parameters such as amplitude and duration of all spikes were measured so that their means and standard deviations (SD) could be calculated as standard QRS templates.
  • SD standard deviations
  • Each QRS complex was then identified, and each ventricular premature complex or noise was rejected according to its likelihood in standard QRS templates.
  • the R point of each valid QRS complex was defined as the time point of each heart beat, and the interval between two R points (R-R interval) was estimated as the interval between current and latter R points.
  • R-R interval rejection procedure a temporary mean and SD of all R-R intervals were first calculated for standard reference. Each R-R interval was then validated: if the standard score of an R-R value exceeded 3, it was considered erroneous or nonstationary and was rejected. The average percentile of R-R rejection according to this procedure was 1.2%. The validated R-R values were subsequently resampled and interpolated at the rate of 7.11 Hz to accomplish the continuity in time domain.
  • Frequency-domain analysis was performed using the nonparametric method of fast Fourier transform (FFT).
  • FFT fast Fourier transform
  • the direct current component was deleted, and a Hamming window was used to attenuate the leakage effect.
  • the algorithm estimated the power spectral density on the basis of FFT.
  • the resulting power spectrum was corrected for attenuation resulting from the sampling and the Hamming window.
  • the power (TP) spectrum was subsequently quantified into various frequency-domain measurements as defined in Table 1.
  • LF was normalized by the percentage of total power except for VLF (total power VLF) to detect sympathetic influence on HRV (LF%).
  • HF HF
  • the necklace-type non-adhering detector for electrocardiographic and temperature information measurement being representative of preferred embodiments, are exemplary, and are not intended as limitations on the scope of the invention. Modifications therein and other uses will occur to those skilled in the art. These modifications are encompassed within the spirit of the invention and are defined by the scope of the claims.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Physics & Mathematics (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Cardiology (AREA)
  • Physiology (AREA)
  • Pulmonology (AREA)
  • Immunology (AREA)
  • Vascular Medicine (AREA)
  • Measuring And Recording Apparatus For Diagnosis (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
EP08009012A 2007-05-15 2008-05-15 Type de détecteur de type à collier pour des informations électrocardiographiques et de température Withdrawn EP2042083A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW096117164A TWI337536B (en) 2007-05-15 2007-05-15 Necklace type of detector for electrocardiographic and temperature information

Publications (2)

Publication Number Publication Date
EP2042083A2 true EP2042083A2 (fr) 2009-04-01
EP2042083A3 EP2042083A3 (fr) 2009-04-08

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EP08009012A Withdrawn EP2042083A3 (fr) 2007-05-15 2008-05-15 Type de détecteur de type à collier pour des informations électrocardiographiques et de température

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US (1) US20080287768A1 (fr)
EP (1) EP2042083A3 (fr)
JP (1) JP2008284364A (fr)
TW (1) TWI337536B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018097343A1 (fr) * 2016-11-22 2018-05-31 주식회사 지인프로테크 Capteur de sécurité de type collier
WO2021248742A1 (fr) * 2020-06-08 2021-12-16 云南兆讯科技有限责任公司 Bracelet de détection de température à double fréquence passive

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JP5979477B2 (ja) * 2012-03-13 2016-08-24 カシオ計算機株式会社 人体情報収集装置
US9183738B1 (en) 2012-04-19 2015-11-10 iDevices, LLC Wireless thermometer and method of use thereof
US20140114142A1 (en) * 2012-10-19 2014-04-24 Emanuel Shaoulian Intelligent patient monitor pendant
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US11141072B2 (en) 2013-02-20 2021-10-12 Baxter International Inc. Necklace-shaped physiological monitor
US9211073B2 (en) * 2013-02-20 2015-12-15 Tosense, Inc. Necklace-shaped physiological monitor
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TWI612984B (zh) * 2013-05-30 2018-02-01 李後傑 一種對人體皮膚注入高中低週波之一訊號以量度皮膚對該訊號的阻抗之系統
JP6354115B2 (ja) * 2013-07-28 2018-07-11 株式会社大木工藝 ネックレス
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018097343A1 (fr) * 2016-11-22 2018-05-31 주식회사 지인프로테크 Capteur de sécurité de type collier
WO2021248742A1 (fr) * 2020-06-08 2021-12-16 云南兆讯科技有限责任公司 Bracelet de détection de température à double fréquence passive

Also Published As

Publication number Publication date
TWI337536B (en) 2011-02-21
JP2008284364A (ja) 2008-11-27
US20080287768A1 (en) 2008-11-20
EP2042083A3 (fr) 2009-04-08
TW200843695A (en) 2008-11-16

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